Ghimney cleaner



April 27, 1926.

A. V. SATTERBERG I CHIMNEY CLEANER Filed March 16 1925 Patented Apr. 27, 1926.

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, k, GI-I'IlViENiilY QLEANER.

Application i1ed=-Mareli 16, 119.25. SelitliN'a1-5s87 an extremely simple and highly efficient' chimney cleaner, a-nd to this end it consists of the novel devices and combinations of devices hereinafter described and defined in the claims. e f c.

In the accompanying drawings, which illustrate the invention, like characters indicate like parts throughout the several views.

Referring to the drawings:

Fig. 1 is a perspective view of tion; l

Fig. 2 is a view partly in elevation and partly in section showing the chimney cleaner lowered into a released to an operative position;

Fig. 3 is a view corresponding to Fig. 2 with the exception that the chimney cleaner has been released to cause its scraper blades to engage opposite faces of the chimney iue; and

the inven- Fig. 4 is a view principally in horizontal section taken on the line 4--4 of Fig. 2, on an enlarged scale.

The numeral 5 indicatesa pair of main plates hingedly connected at their upper ends by a rod 6 that is extended above the chimney cleaner and bent to form a cableattaching member which is in the form of an eye 7 to which is secured a rope 8. The lower ends of the main plates 5 are curved outward to form scraper blades 9. It will be noted that the plates 5 are upwardly tapered so that the scraper blades 9 are con` siderably longer than the width ofthe chimney cleaner at the top thereof. y n

The main plates 5 are held spread by a coiled spring 10 anchored to the inner faces of said plates by having its end convolutions threadedv throughY retaining loops. 11 cut and pressed from the said plates. Supplemental sectional plates 12 are secured to the inner faces of the main plates 5 by thumb nutequipped stove bolts 13 that extend through bores in the main plates 5 and horizontal chimney and about to bey bent to form supplemental scraper blades 15 .that iinderla-p the niain scraper blades 9, Vas best shown in Figgl. Obviously by adjusting lthesectional plates 12 away from eachl` other, their supplement-al scraper blades vl5 are projected to form extensions of the main scraper blades 9 so that the chimney cleaner may be adjusted to clean the chimney flues of different sizes. s

`To hold the main plates 5 drawn together against the tension of the spring 16 so that the chimney cleaner may be lowered into the i chin'iney flue X, I provide a latch in the form of a hook 16. rlihis hool; 16 is flexibly attached vto one of the main plates 5 by an eye 17 that is interlocked with kthe retaining loop 18 cutV and pressed from lsaid main plates and arranged to interlock with a retaining loop 19 cut and pressed from the l slots v,14s infthe supplemental'plates `12,. r The i flower ends of` the supplemental,plates 14: are

other main plate 5, as shown in Figs. 2 and 4.

The latch 16 is provided with a tripping iinger for releasing said latch at the time the chimney cleaner is lowered to the bottom of the flueX so that the spring 16 will separate e the main plates 5 and thereby cause their scraper blades 9 and the supplemental scraper blades 15, if extended, to engage opposite sides or faces of the flue X. This tripping finger 2O extends ybelow the scraper blades 9 so as to engage thebottomof the flue X` and forces the latch 16 upward out of the keeper loop 19 under the lowering movement of the chimney cleaner. It will be notedthat the latch `is formed from a single ro'd bent to form the hook 16 and tripping finger 20.

After the latch has been released, the chimney cleaner is drawn upward through the flue X to cause the scraper blades to scrape soot from the walls of said flue with which they engage. After two of the walls of the chimney have been cleaned, the chimney cleaner is again lowered to the bottom, of the iiue in such a position so that when thelatchis released the scraper blades 9 will j clean the other two walls of the tine X as the chimney cleaner is drawn upward therethrough. Y l p Y By tapering the main plates 5 so that the upper end of the chimney cleaner is considerably narrower than the lower. end thereof, soot, as the same is scraped from the walls of the flue X, will pile up on the scraper blades and then escape between the edges ico of the chimneycleaner and walls of the flue e and be precipitated onto the bottom of the flue. By arranging the supplemental scraper blade-s l5 so that they underlap the main scraper blades 9, said main scraper blades are materially reinforced.

lVhat I claim is:

l. A chimney cleaner comprising a pair of scraper blades under spring tension to separate, and a hook attached to one of the scraper blades and adapted to be interlocked with a part on the other of said blades tfor holding said blades drawn together, said hook having an intermediate releasing linger that extends below the scraper blades when said blades are held drawn together by the hook.

2. A chimney cleaner Comprising a pair of hinged main plates having main scraper blades,. a spring operative to spread said main plates, a latch for holding said main plates drawn together against the tension of the spring7 means for releasing the latch, and supplemental plate sections adjustably mounted on the main plates and having supplemental blade sections.

3. A chimney cleaner comprising a pair of members having scraper blades, and a rod hingedly connecting the plates at their upper ends, said rod being extended above said plates and bentto form a cable-attaching member.

In testimony whereof I affix my signature.

AXEL V. SATTERBERG. 

